Raytracing a Black Hole

Re:Raytracing a Black Hole by jayd16 on Saturday September 15, 2018 @03:46PM (#17995748)

I had never thought about it but in a sense black holes work as a mirror. Some light will sling shot around the back of the hole and back in the opposite direction.

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Re:Raytracing a Black Hole by mwilcox on Saturday September 15, 2018 @03:52PM (#17995765)

This is called gravitational lensing https://en.wikipedia.org/wiki/Gravitational_lens

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Re:Raytracing a Black Hole by monocasa on Saturday September 15, 2018 @03:51PM (#17995761)

And some light will orbit for eons before either going in or escaping.

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Re:Raytracing a Black Hole by quickthrower2 on Saturday September 15, 2018 @09:03PM (#17996833)

Eons from whose point of view?

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Re:Raytracing a Black Hole by empath75 on Saturday September 15, 2018 @09:20PM (#17996878)

Not from the light. It’s always instantaneous

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Re:Raytracing a Black Hole by ZeikJT on Thursday September 20, 2018 @09:23PM (#18036571)

Constant, not instant.

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Re:Raytracing a Black Hole by tombone12 on Saturday September 15, 2018 @05:24PM (#17996106)

You always get some back scatter from a glass surface, so any magnifying glass is much more like a mirror than a black hole.

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